Suspicious pythonw.exe Executing winresume.pyc via Confucius AnonDoor Backdoor (via process_creation)

ATT&CK techniques

Execution → Priv Esc

Recon
Resource Dev
Initial Access
Execution
- T1053.005Scheduled Task
Persistence
- T1053.005Scheduled Task
Priv Esc
- T1053.005Scheduled Task
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects the Confucius AnonDoor Python backdoor which is run by a scheduled task named NetPolicyUpdate invoking pythonw.exe against a hidden winresume.pyc file every five minutes. Execution of a compiled Python module named winresume.pyc by the windowless interpreter indicates the backdoor. The task provides persistence.

Reporting behind it

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Suspicious pythonw.exe Executing winresume.pyc via Confucius AnonDoor Backdoor (via process_creation)

Pivot detection · T1053.005 · 9 related

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